Secured Routing Using Quantum Cryptography

This protocol is used to maintain security in networks for secure communication by overcoming some of the drawbacks in existing security protocols. Integration of both classical and quantum cryptography techniques takes place. Quantum cryptography is used for secure optical transmission which employs quantum mechanisms to distribute session keys Classical cryptography provides convenient techniques that enable efficient key verification and user authentication. This protocol used both implicit user authentication and explicit mutual authentication. A Trust centre is used to generate a secret key and public key by using RSA algorithm and it will develop the random key for each session of transmitting data these key develop a QUIBIT values which develop Session key. By using these keys user translate the messages between the other users securely. Error rate gets reduced when compared to the existing quantum cryptography protocol. Bayesian filtering method is integrated to reduce the external noise. The merits of this new protocol are. Secures against attacks as man-in-the-middle, eavesdropping and replay. Online guessing attacks can be avoided. Efficiency is more since the proposed protocol contain the fewest number of communication rounds. Two parties can share and use a long-term secret key by a trusted center. Error due to noise gets reduced.